Bobbin stripping device



Dec. 25, 1951 L. CLARK BOBBIN STRIPPING DEVI-CE Fild May 20, 1949 IN VEN TOR. LEO CLA RA aw/77M A 7'70RNEY 3 ported on the tray 8 until the yarn has been fully stripped from the bobbin. Thereafter the stripped bobbin is free to fall into the base In of the receptacle through the trap door [2 or other opening.

The stripping device is located between the apron 4 and. receptacle 6 in position to be engaged by the tail of yarn I4 trailing from the bobbin IS. The tail of yarn is caught by a rotating stripping member l8 and wound up on the stripping member as it is drawn from the bobbin. In the construction shown the stripping member is in the form of a tubular sleeve 20 mounted for rotation about a stationary shaft 22 secured to the frame 2 of the loom. The sleeve 20 is provided at one endwith a collar 24 bearing on shaft 22 and having a pulley wheel 26 thereon driven by the belt 28 from the rotating shaft 30. A yarn engaging brush 32 is carried by the sleeve 2!] and preferably is formed of card-clothing consisting of wire bristles 34 which project outward from a leather or, fabric base 36 and are inclined at their outer ends so as to extend toward the free end of the stripper sleeve 20. The brush is mounted within a U-shaped trough or housing 38 secured to the sleeve and having opposite sides terminating below the free ends of the bristles so that only the inclined ends are fully exposed and engaged by yarn extending across the brush. The brush 32 is removably held in place within the housing 38 by the retaining strip 4!] which extends longitudinally between rows of the bristles and is detachably connected to cross pieces 42 adjacent opposite ends of the brush housing. Removal of the retaining strip 40 permits the brush or strip of card-clothing 32 to be lifted out when desired for purposes of cleaning or replacement.

As the yarn is stripped from the bobbins and wound up on the stripping member it is prevented from accumulating by the continuously and automatically operating discharging member 44 which causes the yarn to move lengthwise of thestripping membertoward the free end of sleeve 20 where it is discharged into a receptacle 46. The discharge member 44 is located within the sleeve 20 and is connected at its inner end to the stationary shaft 22 mounted on the frame 2 was to be held against rotation with the sleeve 29. The latter sleeve is cut away at 48 on the side thereof opposite the brush 32 so as to provide a slot 56 through which the surface of the discharge member is exposed.

The portion of the discharge member exposed through the slot 50 presents a helical surface engageable by the yarn as it is wrapped about the sleeve 26 by rotation of the brush 32. As shown, a coiled spring may be used and arranged with the convolutions thereof inclined so that as the brush is rotated and wraps the yarn about the sleeve 28 the yarn is drawn across the slot 50 and enters the spaces 52 between the projecting helical turns of the stationary discharge member. Thereafter on relative rotation of the brush and sleeve the discharge member= acts asa screw to cause the thread accumulating on the brush and sleeve to move longitudinally toward the free end of the sleeve 20. When the yarn stripped from the bobbin reaches the free end of the sleeve it is pushed off the sleeve 20 by the discharge member and falls in the receptacle 46 provided for receiving the yarn. r

The yarn collected in this manner is not tangled and is readily gathered for reuse. When the yarn from the loom is of the same color or type or when all of the bobbins supplied to the stripper have the same type of yarn thereon accumulations having the greatest value for reuse or sale are obtained. Even when the yarns vary considerably they are so loosely and freely gathered in the .discharge receptacles that separation by hand is practical.

The construction shown and described is simple and economical to produce and install. It is therefore possible to apply a bobbin stripper to each loom or other machine discharging bobbins with remnants of yarn thereon. However, the invention is equally applicable for use in stripping the yarn from accumulations of bobbins wherein the bobbins are passed to the stripping device from th hopper or other source of supply.

It will be apparent that the form of brush employed on the stripping member may be varied considerably, and other types of thread engaging and retaining means may be used instead of the card-clothing illustrated. Similarly the discharge member may be formed in various ways to move the yarn accumulating on the stripping member lengthwise of the stripping member to discharge it from the device. In view thereof it should be understood that the particular form of bobbin stripping device shown in the drawings and described above is intended to be illustrative only and is not intended to limit the scope of the invention.

I claim:

1. A bobbin stripping device comprising a stripping member and a discharge member, said stripping member having means thereon engagea'ole by a tail of yarn on a bobbin to retain the yarn, said discharge member having a portion thereof positioned to be engaged by yarn on the stripping member, and means for relatively moving said members to collect yarn from a bobbin on the stripping member, said portion of the discharge member being inclined with respect to the stripping memter in a direction to move the yarn thus collected lengthwise of the stripping member toward an end thereof for discharging the yarn from said end of the stripping member.

2. A bobbin stripping device comprising a stripping member and a discharge member, said stripping member having means thereon engageable by a tail of yarn on a bobbin to retain the yarn, said discharge member having a surface presenting helical recesses positioned to receive the yarn on the stripping member, and means for relatively rotating said members to collect yarn from.

a bobbin on the strippingmember, said helical recesses being inclined with respect to said stripping member in a direction to move yarn lengthwise of the stripping member toward an end thereof for discharging yarn thus collected from the end of the stripping member by the screw action of the discharge member resulting from the relative rotation of said members.

3. A bobbin stripping device comprising a stripping member having yarn engaging means thereon, means for directing yarn-carrying bobbins toward said yarn engaging means, means for rotating said stripping member to draw yarn engaged thereby from a bobbin and wind it about the stripping member, and a discharge member presenting a helical surface engageable by yarn collected on the stripping member and inclined with respect to the axis of rotation of said stripping member in a direction to move the collected yarn lengthwise of the stripping member toward an end thereof to discharge the yarn from said end by the screw action of the discharge member on relative rotation of said members.

4. A bobbin stripping device comprising a stripping member having yarn engaging means thereon, means for directing yarn-carrying bobbins toward said yarn engaging means, means for rotating said stripping member to draw yarn engaged thereby from a bobbin and wind it about the stripping member, and a discharge member about which the stripping member rotates, said discharge member presenting a helical surface engageable by yarn collected on the stripping member and inclined with respect to the axis of rotation of said stripping member in a direction to move the collected yarn lengthwise of the stripping member toward an end thereof to discharge the yarn from said end by the screw action of the discharge member on relative rotation of said members.

5. A bobbin stripping device comprising a stripping member having yarn engaging means thereon, means for directing yarn-carrying bobbins toward said yarn engaging means, means for rotating said stripping member to draw yarn engaged thereby from a bobbin and wind it about the strip-ping member, and a discharge member about which the stripping member rotates, said discharge member being held stationary and presenting a helical surface engageable by yarn collected on the stripping member and inclined with respect to the axis of rotation of the stripping member in a direction to move the collected yarn lengthwise of the stripping member toward an end thereof to discharge the yarn from said end by the screw action of the discharge member on relative rotation of said members.

6. A bobbin strip-ping device comprising a stripping member in the form of a tubular sleeve having a brush extending longitudinally of the sleeve for catching the tail of yarn from a bobbin to be stripped, said sleeve having a longitudinal slot therein, a discharge member located within said sleeve and presenting a helical surface exposed through said slot in position to be engaged by yarn wrapped about the stripping member, and means for rotating said stripping member to collect yarn from a bobbin, said helical surface being inclined with respect to the axis of rotation of the stripping member in a direction to cause the yarn thus collected to be moved longitudinally of said stripping member toward an end thereof for discharge from said end by the screw action of said discharge member on relative rotation of said members.

'7. A bobbin stripping device comprising a stripping member in the form of a tubular sleeve having a brush extending longitudinally of the sleeve for catching the tail of yarn from a bobbin to be stripped, said sleeve having a longitudinal slot therein, a discharge member located within said sleeve and presenting a helical surface exposed through said slot in position to be engaged by yarn wrapped about the stripping member, means for holding said discharge member stationary, and means for rotating said stripping member to collect yarn from a bobbin, said helical surface being inclined with respect to the axis of rotation of the stripping member in a direction to cause the yarn thus collected to be moved longitudinally of said stripping member toward an end thereof for discharge from said end by the screw action of said discharge member on relative rotation of said members.

8. A bobbin stripping device adapted to be applied to an automatic loom adjacent the bobbin deflecting apron on the magazine end of the lay, said device comprising a support mounted on the loom, a brush rotatably mounted on said support, means for rotating said brush from a shaft of the loom, and a stationary discharge member about which the brush is rotatable, said discharge member being connected to said support and presenting a helical surface positioned to be engaged by yarn on said brush and inclined with respect to the axis of rotation of said brush in a direction to move yarn collected by the brush lengthwise of said brush toward an end thereof to discharge the yarn from said end as the brush rotates.

9. A bobbin stripping device adapted to be applied to an automatic m adjacent the bobbin defiecting apron on the magazine end of the lay, said device comprising a support mounted on the loom, a tubular sleeve rotatably mounted on said support and provided with a brush extending longitudinally of the sleeve on one side thereof, the opposite side of said sleeve having a longitudinally extending slot therein, a discharge member located within said sleeve and presenting a helical surface exposed through said slot, said discharge member being held stationary by said support and means for connection to a shaft of the loom to rotate said sleeve and brush about the discharge member to engage and collect yarn from a bobbin ejected from the loom, said helical surface being inclined with respect to the axis of rotation of said sleeve and brush in a direction to move the yarn thus collected lengthwise of the sleeve toward an end thereof for discharging it from said end.

10. A bobbin stripping device comprising a stripping member in the form of a tubular sleeve mounted for rotation adjacent one end thereof, the opposite end of said sleeve having a brush extending longitudinally along one side thereof and presenting bristles inclined toward the free end of the sleeve, the side of the sleeve opposite said brush having a longitudinally extending slot therein, a discharge member located within said sleeve and presenting a helical surface exposed through said slot in position to be engaged by yarn wrapped about the sleeve and brush, and means for rotating said stripping member about the dischar e member, said helical surface being inclined with respect to the axis of rotation of said sleeve in a direction to cause yarn caught by said brush and wrapped about said sleeve to be moved lengthwise of the brush and sleeve and discharged from the free end of said sleeve.

LEO CLARK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Re. 16,056 Terrell Apr. 28, 1925 1,274,522. Dronsfield Aug. 6, 1918 

